The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 05, 2009
Filed:
Apr. 15, 2005
Hiroto Inoue, Shinagawa, JP;
Shigemi Kurashima, Shinagawa, JP;
Takuya Uchiyama, Shinagawa, JP;
Masahiro Yanagi, Shinagawa, JP;
Takashi Arita, Shinagawa, JP;
Kiyomichi Araki, Meguro, JP;
Hitoshi Ishida, Meguro, JP;
Hiroto Inoue, Shinagawa, JP;
Shigemi Kurashima, Shinagawa, JP;
Takuya Uchiyama, Shinagawa, JP;
Masahiro Yanagi, Shinagawa, JP;
Takashi Arita, Shinagawa, JP;
Kiyomichi Araki, Meguro, JP;
Hitoshi Ishida, Meguro, JP;
Fujitsu Component Limited, Tokyo, JP;
Tokyo Institute of Technology, Tokyo, JP;
Abstract
A filtering device is disclosed that can be made compact and has wide-band band-pass characteristics. The filtering device includes a first filtering unit that is composed of a distributed constant circuit and is capable of eliminating a first frequency component or a second frequency component wherein the second frequency being higher than the first frequency, and a second filtering unit that attenuates components of frequencies lower than the first frequency or components of frequencies higher than the second frequency.